javax.enterprise.inject.spi.Interceptor Maven / Gradle / Ivy
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*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
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*/
package javax.enterprise.inject.spi;
import java.lang.annotation.Annotation;
import java.util.Set;
import javax.interceptor.InvocationContext;
/**
* Represents an enabled {@linkplain javax.interceptor interceptor}.
*
* @author Gavin King
* @author Pete Muir
* @author David Allen
*
* @param the interceptor bean class
*/
public interface Interceptor extends Bean
{
/**
* Obtains the {@linkplain javax.interceptor.InterceptorBinding interceptor bindings}
* of the interceptor.
*
* @return the set of {@linkplain javax.interceptor.InterceptorBinding interceptor bindings}
*/
public Set getInterceptorBindings();
/**
* Determines if the interceptor intercepts the specified
* {@linkplain InterceptionType kind of lifecycle callback or method invocation}.
*
* @param type the {@linkplain InterceptionType kind of interception}
* @return returns true if the interceptor intercepts callbacks
* or business methods of the given type, and false otherwise.
*/
public boolean intercepts(InterceptionType type);
/**
* Invokes the specified {@linkplain InterceptionType kind of lifecycle
* callback or method invocation interception} upon the given interceptor instance.
*
* @param type the {@linkplain InterceptionType kind of interception}
* @param instance the interceptor instance to invoke
* @param ctx the context for the invocation
* @return the invocation return value
*/
public Object intercept(InterceptionType type, T instance, InvocationContext ctx);
}